About AppealWin
AppealWin is an AI-powered tool that turns insurance denial codes into MHPAEA-grounded appeal letters in under 60 seconds, built for behavioral health practices and patients fighting denied claims.
What we do
When a behavioral health insurance claim is denied, the Explanation of Benefits (EOB) contains a CARC or RARC code — a short numeric identifier that tells you the reason for the denial. CO-97 means the service was considered bundled. OA-23 means a prior authorization was not obtained. Each code demands a different legal argument to overturn.
AppealWin reads that code, identifies the appropriate regulatory counter-argument — including MHPAEA mental health parity protections when they apply — and produces a complete, professionally formatted appeal letter in under 60 seconds. Therapists enter the denial code, CPT code, and payer name. No patient identifiers, no EHR integration, no billing expertise required.
The first 5 appeals each month are free. Practices with ongoing appeal volume can upgrade to Pro — $99/mo for unlimited appeals, cancel anytime.
Who we built this for
Solo and small-group therapists
LCSWs, LPCs, LMFTs, psychologists, and psychiatrists in private practice who bill insurance directly. These providers bear the full burden of insurance appeals without the billing departments that hospital systems take for granted. AppealWin is their specialist on demand.
Patients appealing on their own
Patients who receive a denial notice and want to file their own appeal without hiring a billing advocate. AppealWin works for member-level appeals too — same codes, same letter quality.
A note on similar names
AppealWin (this site, appealwin.app) is unrelated to AppLovin (the mobile ad-tech platform), ApparelWin (a clothing retailer), or realappeal.com (a weight-loss program). We are a small, US-based tool focused exclusively on health insurance appeal letters for behavioral health practices and patients.
HIPAA posture
AppealWin does not store or require Protected Health Information (PHI). To generate an appeal letter, therapists enter denial codes (CARC/RARC), CPT procedure codes, and payer names. Patient names, dates of birth, Social Security numbers, member IDs, and clinical notes never enter our system — they stay in the practice's existing EHR or billing software. Because AppealWin does not handle PHI, it is not a HIPAA covered entity or business associate. Therapists can use AppealWin without a BAA.
Who built this
Marcelo built AppealWin after seeing how often solo therapists walk away from legitimate denied claims — not because the claims were wrong, but because the appeals process is painful, time-consuming, and requires specialized billing knowledge most clinicians don't have.
AppealWin is a product of Autonomous Labs, a US-based venture studio focused on AI tools for underserved professional workflows.
Current status
AppealWin is in active beta. The core appeal-letter generator supports all major commercial payers (Aetna, Cigna, BCBS, UnitedHealthcare/Optum, Anthem, Medicaid) and all common behavioral health CARC/RARC codes. We are a small team iterating fast based on feedback from early therapist users.
Pro is a flat $99/mo for unlimited appeals — no setup fees, cancel anytime. We keep it simple and affordable for solo practitioners, with the first 5 appeals free every month.
Questions or feedback: support@appealwin.app
Start with 5 free appeals
No credit card. No EHR integration. Ready to send in 60 seconds.